ribbon worm

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Related to ribbon worm: proboscis worm

ribbon worm:

see NemertineaNemertinea
, phylum of elongated, often flattened, marine Worms, sometimes called ribbon worms. There are 900 known species, ranging in size from a fraction of an inch to 90 ft (27 m).
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References in periodicals archive ?
If a ribbon worm runs out of food it can eat up to 95% of its own body and still survive.
They debated for decades over whether to group Amiskwia under arrow worms, ribbon worms or a separate family altogether. 
There are rag worms and peacock worms and ribbon worms and earthworms and fire worms and nematodes and tapeworms and many more.